Menara DDTC, Jl. Raya Boulevard Barat,
Blok XC 5-6 No. B, Kelapa Gading, Jakarta Utara,

+62 21 2938 2700

Key contacts:

Managing Partner: David Hamzah Damian
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Partner: R. Herjuno Wahyu Aji
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Partner: Yusuf Wangko Ngantung
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Senior Advisor Transfer Pricing: Romi Irawan
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Director of Fiscal Research & Advisory: B. Bawono Kristiaji
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Quick facts:

Number of advisers: 140
Network memberships: Indonesia Chartered Accountants, Indonesia Association of Universities' Tax Center
Languages: Indonesia, English, Dutch

Established in 2007 by the esteemed Indonesian taxation experts Darussalam and Danny Septriadi, DDTC has flourished into a diverse organization with multiple specialized units. At the forefront of our offerings is DDTC Consulting, where we provide exceptional taxation services of the highest caliber.

Our comprehensive range of services at DDTC Consulting covers transfer pricing, APA/MAP, tax advisory, and compliance, litigation, dispute & controversy services across all areas of taxation.

Delving deeper into the fiscal landscape, our DDTC Fiscal Research and Advisory unit engages in tax policy research & advocacy, and tailored advisory with extensive analysis specific to your taxation needs.

In the digital realm, DDTC continues to make significant strides. Through DDTC News, we ensure that the latest taxation updates are just a click away, empowering you with up-to-the-minute information. Moreover, our Perpajakan ID serves as a vital hub for daily updates on taxation law, meticulously curated in accordance with the government's newest regulations. And for those seeking a deeper understanding of taxation intricacies, DDTC Academy stands ready to provide customized training and invaluable insights.

Our team consists of highly qualified professionals, including five notable partners and over 150 fee earners, with a significant number holding post-graduate degrees from reputable universities worldwide. Our experts hold licenses, certifications, and diplomas from prestigious institutions like CIOT UK, IBFD, ITC Leiden, WU Vienna, Harvard Kennedy School, etc.

DDTC is your trusted partner for all your taxation needs, supported by expertise, experience, and a commitment to excellence

Compliance Management:

  • Business Model Optimisation
  • Economic Modelling
  • Policy Design
  • IP Management
  • Technology Services

Corporate Tax Matters:

  • Cross-border Project Management
  • Restructuring
  • Cost-sharing Arrangements
  • APAs
  • Transactions
  • M&A
  • Financial Services
  • M&A
  • Financial Services
  • Corporate Taxes
  • Technology
  • Value Chains

Dispute Resolution: 

  • Audit Defence
  • Audit Support
  • Dispute Resolution
  • Pre-litigation
  • MAPs/ADRs
  • Litigation
  • Arbitration
  • Controversy Management

Tax Advisory:

  • Tax Consulting
  • International Tax Advisory
  • VAT
  • GST
  • Customs
  • Supply Chains


  • Research
  • Training
  • Policy Advisory
  • Knowledge Sharing for Tax Stakeholders
  • Tax Incentives & Facility Support
  • Tax Compliance Assurance
  • HNWI & Expatriate Taxes
  • Individual Employee Taxes
  • Judicial Review Support

  • International tax planning
  • Economic modelling 
  • Cross-border project management 
  • TP policy design 
  • Business restructuring 
  • Business model optimisation
  • Audit defence
  • Audit support
  • TP risk management 
  • IP management
  • Cost-sharing arrangements 
  • Dispute resolution 
  • Litigation
  • Arbitration
  • Controversy management

Tax Controversy
R Herjuno Wahyu Aji
Transactions Tax
Rinan Auvi Metally
Corporate Tax Matters & Tax Advisory
David Hamzah Damian
Indirect Tax
Ganda C Tobing
Compliance Management
Klara Erika

Transfer Pricing Documentation
Pretty Wulandari
Transfer Pricing Controversy & Dispute Resolution
Veronica Kusumawardani
Supply Chain Optimisation & Business Restructuring
Flouresya Lousha
Advance Pricing Agreement
Cindy Kikhonia Febby
International Tax Planning
Yusuf Wangko Ngantung

  • Accounting 
  • Agriculture
  • Automative
  • Aviation
  • Banking
  • Construction and materials
  • Consumer goods and services
  • Energy
  • Financial services 
  • Food and beverage
  • Foestry
  • Government and public policy
  • Healthcare
  • Industrials 
  • Insurance
  • Investment management 
  • Media
  • Mining 
  • Natural resources
  • Oil and gas
  • Pharma and life sciences
  • Real estate 
  • Shipping
  • Social infrastructure 
  • Tech and telecoms
  • Tourism 
  • Transport
  • Utilities


  • Online Retail,
  • Rubber Industry
  • Dairy Products
  • Tobacco Processing
  • Pulp & Paper
  • Electrical